going boosted, need 4" tubing

[luckythirteen13]

im looking for 4" tubing, exhaust is fine, for an intake but cant seem to find anything prebend that isnt rediculously expensive. do any of you guys know of a web site that sells 4" exhaust components?

 

[rowdie- stang]

Why not just buy one from anderson or upr..........

 

[CManT1914]

Why not just buy one from anderson or upr..........

......or is this a budget buildup? Your local exhaust shops may have 4" pieces of pipe.

 

[luckythirteen13]

im not familiar with the upr intake but i know about the andersone power pipe and just dont want to spend $250 on something that has less then $50 in parts. plus its always rewarding to make something yourself, especially when your making it to save some good money.
ill have to give the local exhaust shop a call.

 

[rowdie- stang]

Do you have a mandrell bender??????If not it want be worth it because you are going to restrict the flow around the bends

 

[ms93gt]

www.airflowonline.com
Go into the intake tubing.

 

[04sleeper]

Semi-Truck places carry the stuff. Just find a local one near you.

 

[dw89lx]

I just installed the UPR 4" boostpipe and actually noticed about a 3lbs of boost difference. I got it for $99 and it was really easy to install. I tried making my own intake pipe but it didn't work that well and was a pita to make. The UPR pipe was worth every penny.

 

[Rick 91GT]

Try Jon, he is awesome to deal with and will treat you right, tell him Rick91GT sent you.

He has starights, 45's, 90's, etc and almost any size. Once I fgure out my blower pipes with the Air to Water intercooler I'll be calling him....plenty of good references for Jon. I have seen the stuff first hand and it is very nice.

Aluminum Tubing
Home 517-266-1180.
Cell 517-403-1914.

The UPR pipe is nice, I would say NEAR identical to a AFM, I have used a few of them on the fox bodies and they are hard to beat for $99, complete with rubber connectors and clamps. They say it will fit a 94-95 but that requires a ton of cutting.

 

[just4bob50]

I went to the local truck garage and got two 4" Dia. peices with a 90 deg. bend in them for 18 bucks and then cut and fit the peices myelf. had the speed shop weld it up for 10 bucks.

 

[luckythirteen13]

bob that looks great. what radias bends are those? one more question on the matter, what is the actual difference in hp wise in 3# gain from the pipe as compaired to 3# gain from a pulley swap? is it just that the extra boost is made without speeding up the sc? or is there another penefit?

 

[just4bob50]

First i used just the 90 deg. bend sections of the pipes. Then i cut away equal slices on both bends in pie shaped cuts with my compound miter saw and a metal blade. Once the peices made a nice smooth bend when put together, i then fit them in the engine bay, made a few more cuts and then had it welded up. I ordered a 4" to 3.5" reducing silicone hose from Hose Techniques.
As for your second question, I dont think there is a difference in hp between the 2 methods, but getting an increase in boost from a pipe means that the charger is working more efficiently without changing the pulley. Ive heard that if you have say an 8lb. pulley and 3" inlet you will probrobly see 7 lb. of boost on a guage. Then people put the power pipe on and now there making 9lbs. of boost. going to a 4" pipe makes it much easier for the charger to suck air in at a faster rate. Thats why people see a boost increase with a 4" pipe. I have a 6 lb. pulley on mine and at 5700 rpms im already making 6 lbs. of boost. I ran it to the rev limiter the other night in 3rd gear one time and the boost guage read 7lbs.

 

[Car RamRod]

Semi-Truck places carry the stuff. Just find a local one near you.

exactly